Flipped 5: Reactions & Gases

How can you tell if a chemical reaction has taken place?

Evidence of a Reaction

  • Temperature change
  • Gas given off
  • Colour change
  • Formation of new substance

Watch the video below!

Testing for Gases

  • Oxygen - Relights a glowing splint
  • Hydrogen - Squeaky pop!
  • Carbon Dioxide - Turns limewater milky

Just watch to 1:14!